Fuel Tank Temperature Sensor (CNG): Service and Repair
FTT Sensor Replacement1. Remove the fuel joint block.
2. Remove the FTT sensor (A).
3. Apply silicone oil or polyalkyleneglycol (PAG) oil to a new O-ring (B) and carefully install it into its proper position.
4. Install the parts in the reverse order of removal.
5. Do the leak inspection procedure.